Add lab files

2013-09-02 21:23:07 +12:00
parent be4e83bad5
commit d1383b45bc
84 changed files with 2886 additions and 0 deletions
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+# File:   Makefile
+# Author: M. P. Hayes, UCECE
+# Date:   12 Sep 2010
+# Descr:  Makefile for lab1-ex2
+
+# Definitions.
+CC = avr-gcc
+CFLAGS = -mmcu=atmega32u2 -Os -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/avr
+OBJCOPY = avr-objcopy
+SIZE = avr-size
+DEL = rm
+
+
+# Default target.
+all: lab1-ex2.out
+
+
+# Compile: create object files from C source files.
+lab1-ex2.o: lab1-ex2.c ../../drivers/avr/system.h
+	$(CC) -c $(CFLAGS) $< -o $@
+
+system.o: ../../drivers/avr/system.c ../../drivers/avr/system.h
+	$(CC) -c $(CFLAGS) $< -o $@
+
+
+
+# Link: create ELF output file from object files.
+lab1-ex2.out: lab1-ex2.o system.o
+	$(CC) $(CFLAGS) $^ -o $@ -lm
+	$(SIZE) $@
+
+
+# Target: clean project.
+.PHONY: clean
+clean: 
+	-$(DEL) *.o *.out *.hex
+
+
+# Target: program project.
+.PHONY: program
+program: lab1-ex2.out
+	$(OBJCOPY) -O ihex lab1-ex2.out lab1-ex2.hex
+	dfu-programmer atmega32u2 erase; dfu-programmer atmega32u2 flash lab1-ex2.hex; dfu-programmer atmega32u2 start
+
+
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+# File:   Makefile
+# Author: M. P. Hayes, UCECE
+# Date:   11 Sep 2010
+# Descr:  Makefile for ex2 docs
+
+DEL = rm
+
+all: file_dependencies.pdf module_dependencies.pdf makefile_dependencies.pdf build_dependencies.pdf callgraph.pdf
+
+file_dependencies.pdf: files.d 
+	../../../etc/graphdeps.py $< --out $@
+
+module_dependencies.pdf: modules.d 
+	../../../etc/graphdeps.py $< --modules --out $@
+
+makefile_dependencies.pdf: ../Makefile
+	../../../etc/graphdeps.py $< --out $@
+
+build_dependencies.pdf: ../Makefile
+	../../../etc/graphdeps.py $< --out $@ --showops
+
+callgraph.pdf: callgraph.d
+	../../../etc/graphdeps.py --calls --modules $< --out $@ --showops
+
+
+files.d: ../Makefile
+	(cd ..;	../../etc/makemake.py --relpath --files . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/files.d)
+
+
+modules.d: ../Makefile
+	(cd ..;	../../etc/makemake.py --relpath --modules . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system > doc/modules.d)
+
+
+callgraph.d: ../Makefile
+	(cd ..;	../../etc/makemake.py --cc="avr-gcc" --cflags="-Os -mmcu=atmega32u2" --relpath --calls . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/callgraph.d)
+
+
+# Clean: delete derived files.
+.PHONY: clean
+clean: 
+	-$(DEL) *.d *.pdf
+
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+Running make in this directory will generate a number of PDF graphs.
+In the callgraph, the arrows means "calls".  In the dependency graphs,
+the arrows means "requires" (or "depends upon").
+
+callgraph.pdf             This shows the callgraph, i.e., what functions each
+                          function in the program calls.
+module_dependencies.pdf   This shows the dependencies between the modules.
+file_dependencies.pdf     This shows the dependencies between the files.
+makefile_dependencies.pdf This shows the dependencies required by make when
+                          building the program.
+build_dependencies.pdf    This is like makefile_dependencies.pdf but shows
+                          the operations performed to generate the new file.
+
+callgraph.d               This shows the callgraph in text format.
+files.d                   This shows the file dependencies in text format.
+modules.d                 This shows the module dependencies in text format.
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+#include <avr/io.h>
+#include "system.h"
+
+
+static void led_init (void)
+{
+    /* Initialise port to drive LED 1.  */
+
+    /* TODO.  */
+}
+
+
+static void led_on (void)
+{
+    /* Set port to turn LED 1 on.  */
+
+    /* TODO.  */
+}
+
+
+static void led_off (void)
+{
+    /* Set port to turn LED 1 off.  */
+
+    /* TODO.  */
+}
+
+
+
+static void button_init (void)
+{
+    /* Initialise port to read button 1.  */
+
+    /* TODO.  */
+}
+
+
+static int button_pressed_p (void)
+{
+    /* Return non-zero if button pressed_p.  */
+
+    /* TODO.  */
+}
+
+
+int main (void)
+{
+    system_init ();
+
+    led_init ();
+    button_init ();
+
+    while (1)
+    {
+        if (button_pressed_p ())
+        {
+            led_on ();
+        }
+        else
+        {
+            led_off ();
+        }
+    }
+}